is my wifi or modem the problem?

[Joshua]

So ive had my wifi so the past moth now,and the 2 week i started to notice some problems . I have a belkin n300 (wifi router) and hughes net (internet. Provider) the fist sign was as i play my online mutiplayer it startes to lag and second is when i watch videos the video wony even load and the router is in the middle of the house so,it proportioned. And there are probably abiut 2 to 3 devices conected.so as i start to watch a video on youtube it wont load at all and. The internet facebook and the,internet. Is just fine but the when it,come,to videos and gameing it a total wreck all so the downlaoding it horrible i will try to update a game or an app but it take 20mb abiut 40 to 60 minutes. Someone please help any tips i,need my wifi also,i have a ethrrnet cable hooked up to my ps3 but dosent make a diffrence please help very fustrating

[Jay]

This could be a provider issue, what's the speed of your internet ?